Improvement in sole trimming and burnishing machines



j 3 Sheetsnheel. c, w. @www Improvement in Sole-TrmmingandBurnishng-Machine.

No. 130,2i2, Patented Aug. 6,1872.

3 Sheets--Sheetl C. W. GLlDDEN.

improvement in Sole-Trimming and Burni-shing-Machines.

N0. 130,212. c Patented Aug. 6,1872.

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.Improvement in Solve-Trimming and-Burni'shing-Machines.

N0. 130,212, l Patented Aug.. 6,1872.

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-ripheral or curved edges of heel and toe in lin stationary bearings,the gear-plate being on UNITED STATES PATENT OFFICE.

CHARLES IV. GLIDDEN, OF LYNN, MASSACHUSETTS.

IMPROVEMENT IN SOLE TRIMMING AND BURNISHING MACHINES.

Specification forming part of Letters Patent-No. 130,212, dated August6, 1872..

To all lwhom it may concern:

Beit known that I, OHARLEs W. GLIDDEN, of Lynn, in the county of Essexand State of Massachusetts, haveinvented certain Improvements inTrimming and Burnishing the Edges of the Soles of Boots and Shoes 5 andI do hereby declare that the following, taken in connection with thedrawing which accompanies and forms part of this specication, is adescription of my invention sufiicient to enable those skilled in theart. to practice it.

The invention relates to the construction or organization of amachine'for trimming the edges of soles of boots and shoes, and to thatclass of such machines in which the shoe being mounted upon a suitablejack has its edge presented to the trimming device, the shoe having areciprocating oblong and semi-rotative movement, to bring the entirelength of each side from heel to toe, and the entire pesuccession, andby a continuous movement of the shoe, to the action of the trimming toolor tools.

- In my construction I use an oblong gear-1 plate, the line of teeth ofwhich has a curved form corresponding to the general form in outline ofa sole, which gear-plate I drive or feed by a pinion placed above it ona shaft rotating a shaft, which is supported upon a link connected toavertical slide, and said slide being pressed up by a weighted lever, sothatthe link may partake of or conform to the irregular movement of thegear-plate, and said plate shall be held up to the pinion and kept inengagement therewith by the upward pressure upon the link, the platehaving in its rear face a groove near its edge and equidistanttherefrom, into which a stud-pin enters, said pin and groove maintainingthe proper relation between the gear-plate and the pinion, and theweighted lever rendering thc movements of the plate uniform andpreventing strain upon the pin and groove-walls. The gear-plate shaftextends from the center of the plate, but the shoe is jacked upon a pin(extending from an arm of said shaft) which is in line with the heel orthe heel part of the shank, as the jack-- pin must pass lthrough theopen or leg part of the boot or shoe, and, the shoe being thus jacked,its movement corresponds to the movement of the gear-plato. To thesole-edge of the shoe thus jacked and moved are applied the trimmingdevices, and the guiding and guarding devices, by which the depth of cutand the uniformity of edge with relation to the upper are insured.

For carrying these devices I use a compound arm, to one member of which,swinging on a horizontal-pin, I pivot a vertical pin carrying ahorizontal bearing, upon which are pivoted two other members, one ofwhich carries guides for keeping the cutters in position to trim theedge and rand, and the other of which carries the edge cutter orcutters, both of the latter arms swinging or yielding horizontally, sothat guides and cutters can follow the curvatures of the face of thesole, and both swinging or yielding vertically to follow the edgecurvatures of the sole or the upper adjacent thereto, and theedge-cutter and the guides and randcutter also having provision forbeing relatively set for adjusting the angle of the face of the edge tobe formed.

For the arms carrying the guides and cutters, arms may be substitutedcarrying guiding and edge-burnishing wheels; and the invention consistsprimarily in the combination of the gear-plate made and mounted as de.-f

scribed, and carrying a shaft to which is fixed the shoe-holding jack,of compound arms, carrying guiding and trimming or burnishin g devicesso arranged that the said devices have irregular movements conformingto{the movements of the edge to be trimmed or burnished, and areautomatically held to such edge to effect said trimming or burnishing.

The invention also embraces other features of construction relatingto'the arrangement of the guides and cutters, and of theburnishingwheels and guides, the construction of the jack, &c.

The drawing shows a machine and mechanism embodying my invention.

A shows the machine in side elevation. B is a plan of the machine. C isa front elevation of it.

a denotes a post, upon which the various parts of the machine aresupported. At the front of this post is a vertical slide, b, moving on aguide-rail, c, and having jointed to its front a link, d, to the upperend of which link is pivoted the gear-plate e. ,This plate is made withthe oblong sole-shaped gear f, and has in its rear side the correspondingly-shaped groove g, into which extends the stationary pin h projectin gfrom the plate t' of the post. The pivotpin j extends from about thecenter of the gearf, and has at its front end an arm, k, from which thejack-pin l extends, said jack having secured upon it the shoe m, theedge of which is to be trimmed or burnished. Over the gearplate c is agear-pinion, a, xed on a drivingshaft, o, rotating in stationarybearings at the top of the post, the rotation of the gear imparting thelongitudinal and rotative move- Inents to the gear-plate to cause thejack to be similarly moved in order to present the whole length ofsole-edge to the action of the trimming or burnishin g mechanism. Theslide b is jointed by a link to the front end of a lever, p, pivoted tothe post, and having its rear end weighted, the stress of the weightkeeping the gear-plate in position or up to the gearpinion, so that thegear-plate and jack may be properly guided by the groove g and pin 71without tendency of the pin to bind in the groove, or of the jack vtosag by its weight. rEhe jack to which the shoe is secured is peculiar,and is shown in detail at D, E, F, and G. Said jack has two plates, q i,,(which may be called heel and sole plates,) the plate q being jointedtoan arm, s, extending from a tubular support, t, and the plate l' from asimilar arm, a, extending from the support t. Said support t is pivotedto a bearing, c, by a pin, w, and sliding in the support is a rod, x,having pins extending from it through slots in the support t, upon whichpins are friction-rolls y rolling in guide-grooves c in the bearing t,said slots being eccentric to the pivotal pin fw. The outer end of theslide-rod .r is pivoted to the adjacent ends of the two plates q i, asseen at D and G, and when the support and sliderod are in line with thepin l the two plates are in -line, as seen at D, while when said supportand rod are swung around to a right-angular position to said line themovemento'f'the rolls yin the eccentric slots z draws in the sli\- rod xand brings the plates to the relative auf guiar position seen at G. Tothe front of the sole-plate r an upper stretcher, c2, is pivoted, saidstretcher having a roll, b2, traveling on the arm u, and when the platesare brought into angular position this stretcher is thrown toward theplate r, as seen at G, while by straightening the plates it is thrownfrom the plate 1", as seen at D. When the shoe is to be jacked thesupport and slide are swung around until the plates assume the positionseen at G, and the shoe can then be easily drawn over the plates, and,when so drawn over, the support and slide are thrown back to bring theplates into the position seen at D, and the plates, in straightening,will expand or stretch against the shoe-upper and directly against thesole, so that, by the combined movement of the plates and stretcher, theshoe will be rigidly and immovably fastened upon the jack. When theslide u comes into line with the pin l a spring-bolt, c2, iiies into thenotches d'2 and locks the slide-rod support t, bearing u, and plates r qin relative immovable position. The trimming or burnishin g mechanism issupported upon an arm, f2, mounted on a horizontal bolt or pin, g2,extending through the end of a stationary arm, h2, which projects fromthe top of the post a. To vary and adjust the angle of presentation ofthe said mechanism the arm f2 is made capable of vertical movement uponthe bolt g2, and the sleeve by which it is mounted upon the bolt bears,at its inner end, against a lever, 112, also mounted on said bolt, thesleeve being tightened and held against the lever by suitable nuts uponthe bolt, between one of which and the adjacent end of the sleeve isplaced a suitable washer. The lever extends toward the post a, andcarries at its inner end a spring-latch, k2, which enters a notch, Z2,in a plate, m2, which plate may be made adjustable in position by meansof a nut and screw, n2, and a slot, 02. The nut p2 being loosened, thetrimming or burnishing mechanism is set or adjusted to the desirablepresentation thereof with reference to the soleedge to be acted upon,(the lever-latch k2 being in its notch,) and the nut is then tightened.This being effected, the mechanism may be raised from the shoe or fromworking position to apply or remove a shoe by drawing out the latch k2and lifting the lever if", the 1ever i2 and arm f2 swinging as one. Theburnishing or trimming mechanism is attached to the arm f 2 by means ofa pin, q2, which extends down from a horizontal sleeve or bearing, r2,and through a vertical bearing, s2, at the end of the arm f2, the pin g2and its bearing T2 swiveling in the bearing s2, and being tightened by ascrew and nut, t2. a2 denotes the edge-trimming cutter fixed upon thearm ft2, the shank of which arm is formed as a cylindrical pin or shaft,j, journaled in the bearing r2, in which it may be confined and more orless tightened by a screw, m2. For convenience the arm ma-y be providedwith a series of cutters, u2, extending from a ring, y2, fastened uponthe arm by a nut, z2. rI he cutter stands horizontally, or approximatelyso, and its cutting-edge extends over the edge to be trimmed fromoutside ofthe sole, and the depth of cut is gaged by a guide-foot, a3.This foot is, at the bottom of a shank, b3, connected to an arm, c3,which arm extends from the cutter-arm c2, the arm c3 being preferablyconnected with the arm u2 by means of a sleeve, d3, fitting upon the pinjz, upon which it is fastened in position by a screw, e3, which screwpermits the arm to be adjusted in angular position with reference to thecutter-arm c2. The gage-foot rests upon the upper at the seam, andthereby gages the depth of cut of the edge-trimming knife from saidupper, and, to trim to amore or less projecting edge, the foot is madeadjustable in height, its shank b3 passing through an arm, f3, extendingfrom a pin, g3, which pin g3 passes through a vertical sleeve, h3, atthe end of the arm c3, and is pressed down by a spring, i3.

is provided with two guide-rollers, k3, at the a sleeve, f4, thatcarries a grooved pulley, g4,

The pivot q2 enables the guide and cutters to follow the lateralirregularities of the sole, and the pivot g2 enables them to follow theperipheral irregularities thereof, and to keep the cutters andguide'against the edge the pin g3 bottom of two projections, Z3, from aplate, m3, which plate m3 has ears n3, by which it is hung to pivots o3,extending from opposite ends of the pin g3. A tail-piece, p3, of theplate has a spring, g3, that bears against the bearing h3, and when theparts are in position to operate the gage presses upon the inner side ofthe sole and the rolls upon the outer side thereof, the rol ler-frameswivelin g in conformity to the irregular or curved form of thesole-face, but keeping the gage at all times in position.

In connection with the gage and edge-cutter a rand-cutter, r3, may beemployed, said cutter or cutter-head being xed to or forming the bottomof the pin g3. The cutter-head may beformed with a shoulder that restsupon the sole-edge or upon the edge-cutter, and has a vertical lip, s3,on the inner face of which lip is the blade r3 that trims the rand, theblade being presented to the face of the rand toward the upper. .In theburnisher mechanism the arm e3 has extending through it a shaft,carrying at its outer end a bevel-gear, a4, meshing into and driving abevel-gear, b4, on a shaft, c4, which shaft carries another bevel-gear,d, meshing into and driving a beve gear, e4, on

which, by a band, h4, is connected to a pulley, i4, on a shaft, 164,carrying a burnisher-roll, Z4, which roll is made with a cylindrical orother shaped peripheral surface, m4, to run in contact with the outeredge of the sole, and two lips or flanges, n4 o, that embrace the edgeand burnish the top and bottom of the sole irnmediately adjacent to theedge, the flange o4 being preferably made as a ring sliding upon theshaft, and pressed up against the sole by the stress of a spring, p4.The shaft of the roll n4 is journaled in a frame, g4, that swivelshorizontally on the shaft, so that the roll and its flan ges accommodatethemselves to the curves as well as to the varying thickness ofthe sole;and to guide the roll or keep it properly presented the frame g4 isprovided with two friction-rolls, r4, that bear upon the outer face ofthe sole, (one on each side of the point of aetion of the roll m4,)these rolls turning on pins extending up from a slide-plate, 84, thatslides in the frame and is pressed up to the roll by the stress of aspring, t4. When the frame is pressed down to hold the burnisher to thesoleedge the pressure upon the gears would tend to make them bind; toobviate which I use friction-rolls a4, (turning on pins extending fromthe frame,) which bear upward against a disk, fw", and, rolling againstthe same, enable the frame to freely swivel without affecting thegear-train.

By means of a machine having the general organization set forth, andwith a trimming and burnishing mechanism substantially like thosedescribed, the edges of the soles of boots and shoes may be rapidly,evenly, and effectively trimmed and iinished.

Heretofore it has been always customary, in

machine trimming or burnishing the heels of boots or shoes, to presentthe boot or shoe to the trimming or burnishing mechanism upon a last;but in this invention the last is entirely dispensedwith so far asrelates to these operations, the stretcher-plates or jack-plates holdingthe shoe as rmly as it could be held by a last, and its application andremoval to and from the jack being effected very quickly and with theutmost ease.

In the series of cutters @L2 the cutting-edge may be made so as to formdiiferent bevels and to gage the action of the rand-cutter as the foxingof the toe of a shoe meets the cutter. I employ a device, represented atJ, in which, at the side of the cutter r3, is a spring foot or gage,004, that rides upon the upper. At each side of this foot is anauxiliary foot, 1/4 a, the shank of which slides in al box, a, and isjointed to a conn eetor, bs, said connector being pivoted at c6, andthrowing down either foot when the other one is pressed up. Normally,the position of the two feet 1/4 a4 is just above the point of thegage-foot x4; but when the foot in advance strikes the foxin g the otherfoot is'pressed down, thereby raising the gage x4 and the cutter beforethey reach the foxin g.

I claiml. In combination with a boot or shoe holding jack, the slide b,link d, gear-plate e, and gear a, relatively arranged and operatin gsubstantially as shown and described.

2. In combination'with the boot or shoe holding jack and mechanism tooperate the same, the lever 2, pivoted and adjustable arm f2, andpivoted and adjustable sleeve s2, and arm c3, relatively arrangedsubstantially as shown and described.

3. In combination with the arm c3, the adj ustable cutter-arm e2 and itscutter or cutters a2, substantially as shown and described.

4. The series of cutters u2, extending radially from the ring y2 securedto the outer end of cutter-arm e2, substantially as shown and described.

5. In combination with the cutter u2, the

gage-foot a3, located and operating with re` spect to the cuttersubstantially as shown and described.

6. In combination with the edge-cutter u2 and the gage a, therand-cutter r3, arranged to operate substantially as shown anddescribed.

7. In combination with the edge or rand eutter r3, the roller-frame m3aud rollers 7c3, constructed and operating substantially as shown anddescribed.

8. The arrangement of the gage a3, edgecutter u2, and rand-cutter r3 toyield laterally and vertically in accordance with the edge and surfacecurvature ofthe sole.

9.. Also, the flanged burnisher-roll l" placed at the end of the shaftk, which shaft is driven from the shaft o4 by the gears d4 e4, pulleysg4 i4, and band h4, substantially as shown and described.V

10. The roll or roller ange o, pressed for- Ward by the stress of thespring p4, substantially as described.

11. In combination with the burnishing-roll7 the guide-rolls r4 andtheir frame g4, substantially as described.

12. In combination with the burnishing-roll, the friction-rollers a4 anddisk 104, arranged substantially as shown and described.

13. The jack, composed of the hinged sole and heel plates 1' q, operatedsubstantially as shown and described.

14. In combination with the sole and heel Vitnesses FRANcIs G OULD, M.W. FROTHINGHAM.

